Identify each of the following as either an interface or a class: Collection LinkedList Iterator AbstractList What is the difference between an interface and an abstract class? Of what value is an abstract class? That is, to what extent can an abstract class make a programmer more productive?
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Identify each of the following as either an interface or a class:
Collection LinkedList
Iterator
AbstractList
What is the difference between an interface and an abstract class?
Of what value is an abstract class? That is, to what extent can an abstract class make a programmer more productive?
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- Write the Java code corresponding to the following UML diagram. The class School implements the interface Building. The method computeArea returns the area of the building as width * length. After that, add a testing class with a main method which defines an arrayList that contains three objects. From the main method, print the area of all the three objects.Implement a generic priority queue in Java and test it with an abstract Cryptid class and two concrete Cryptid classes, Yeti and Bigfoot. Create a code package called pq and put all the code for this assignment in it. Write the abstract class Cryptid. A Cryptid has a name (a String) and a public abstract void attack() method. Name should be protected. The class implements Comparable<Cryptid>. The compareTo method returns a negative int if the instance Cryptid's name (that is, the name of the Cryptid you called the method on) is earlier in lexicographic order than the name of the other Cryptid (the one passed in as an argument; it returns a positive int if the other Cryptid's name is earlier in lex order, and returns 0 if they are equal (that is, if they have all the same characters.) This part is easy; just have the method call String's compareTo() method on the instance Cryptid's name, with the other Cryptid's name as the argument, and return the result. Extend Cryptid…only in java not in java c++ Create an interface EnhancedShape that extends Shape and also requires a method public double perimeter( ) to be implemented by any class that uses the interface. Create a class file, an interface ehancedshape extends shape, and an interface shape file.
- Implement the following tasks by using concepts of object-oriented programming (Java). i. Create a generic class with a type parameter that simulates drawing an item at random out of a box. This class could be used for simulating a random drawing. For example, the box might contain Strings representing names written on a slip of paper, or the box might contain Integers representing a random drawing for a lottery based on numeric lottery picks. Create an add method that allows the user of the class to add an object of the specified type along with an isEmpty method that determines whether or not the box is empty. Finally, your class should have a drawItem method that randomly selects an object from the box and returns it. If the user attempts to drawn an item out of an empty box, return null. Write a main method that tests your class.ii. The following is a short snippet of code that simulates rolling a 6-sided dice 100 times. There is an equal chance of rolling any digit from 1 to…JAVA I am trying to figure out how to connect the PaymentBatchProcessor Class (generic) to the Payment Class(interface). Can you explain the relationship and how I can populate payment.getamount() for my test. Does the paymentBatvhPossser also have to implement the Payment Class ? The other two classes are Check and IOU that implements the payment class. package cop2251.fall23.week4.sullivan; import java.util.ArrayList; import java.util.List; ///PaymentBatchProcessor to work with any of the three types shown above. The PaymentBatchProcessor //class should maintain a list of payments (using an ArrayList), //based upon the type it was instantiated to work with. //a method named add that adds the appropriate payment type to the ArrayList. //a method named getMax() that returns the payment with the largest amount //a method named getTotal() that returns the sum of all the payments //a method named getSize(), that returns how many payments are in the ArrayList.…Because a class may inherit from several interfaces, interfaces help establish stronger is-a connections. whether anything is real or fake
- Because a class may derive from a number of different interfaces, interfaces aid in the establishment of stronger is-a links. if anything is genuine or a fakeComplete the implementations of the abstract class LinkedList.java, which implements the List.java interface and the class LinkedOrderedList.java, which extends the abstract class LinkedList.java and implements theOrderedList.java interface. LinkedList methods to implement: removeFirst removeLast remove contains LinkedOrderedList method to implement: add Recommended order of development: add to empty list to end of list to front of list to middle of list contains removeFirst removeLast remove Write a test class that tests all of the methods you implemented. Note: You only need to test LinkedOrderedList, because all of the methods are implemented in that class or inherited from LinkedList. Although you are not required to submit the test class, you might be asked to do so if you are having difficulties getting your implementation to work. Submit the completed LinkedList.java and LinkedOrderedList.java. LinkedList.java code import java.util.NoSuchElementException;import…Modify the GeometricObject classto implement the Comparable interface and define a static max method in theGeometricObject class for finding the larger of two GeometricObject objects.Draw the UML diagram and implement the new GeometricObject class. Writea test program that uses the max method to find the larger of two circles, the largerof two rectangles.
- Write a java program that Create a generic class AnimalList that has a type parameter T. It should have at least two properties declared as the passed type, constructors), getters, setters, and toString methods. Create a superclass Animal that has two properties (String, int, etc.), and constructor, getters, setters, and toString methods. Create two subclasses of Animal called Cat and Dog. Each class should have a unique property and method. Create a class Lizard with a method of your choice. Create a main class AnimalTest that creates two instances of Animal: Dog type and Cat type. Create a method that takes Animal type as parameter constraining the types to be subclasses of the Animal class only; check the type of object and call the unique method in the Dog and Cat. Create an instance of the Lizard class and test it. Display all objects.Modify the GeometricObject class to implement the Comparable interface and define a static max method in the GeometricObject class for finding the larger of two GeometricObject objects. Draw the UML diagram and implement the new GeometricObject class. Write a test program that uses the max method to find the larger of two circles, the larger of two rectangles.using java programmingWrite a Java program with the following: An abstract superclass with one abstract method that sorts an ArrayList object in ascending order. A subclass that overrides the abstract method in the superclass. A class ACTIVITY that contains main(). in main(): Initialized an array of strings with at least ten(10) elements and use this array as the elements of the ArrayList object. Create an object of the subclass and use this object to sort the ArrayList object. Display the sorted list.